Wilhelm yon pittler



(No Model.)

W. VON PITTLER. TURNING LATHE.

No. 507,283. Patented Oct. 24, 1a9s.=

W/TNESSES: INVEN f? UNITED STATES PATENT, OFFICE.

WILHELM VON PITTLER, OF LEIPSIG-GOHLIS, GERMANY.

TURNING-LATHE.

SPECIFICATION forming part of Letters Patent No. 507,283, dated October 24, 1893.

- Application filed June 9, 1892- Serial No. 436,058, (No model.) Patented in Germany February 7, 1889, No. 50,246, and May 7, 1890, No. 51,989; in England May 20, 1889, No. 8,374, and January 1, 1890, No. 1,358; in Belgium December 13,1889,No, 88,835, and February 4, 1890, No. 89,399, and in Austria-Hungary October 24, 1890, No. 21,190 and No. 44,858, and October 25, 1890, No, 16,561 and No. 34,592,

To all whom it may concern:

Be it known that I, WILHELM VON PITTLER, a citizen of the Empire of Germany, and a resident of Leipsic-Gohlis, in the Empire of Germany, have invented certain new and useful Improvements in Turning-Lathes, (for which I have obtained Letters Patent in the following countries: Austria-Hungary, October 24, 1890, No. 21,190 and No. 44,858, and October 25, 1890, No. 16,561 and No. 34,592; Germany, February 7, 1889, No. 50,246, and May 7, 1890, No. 51,989; England, May 20, 1889, No. 8,374, and January 1, 1890, No. 1,358; Belgium, February 4, 1890, No. 89,399, and December 13, 1889, No. 88,835,) of which the following is a specification.

The object of my invention is to provide a new and improved metal-working machine which is adapted for turning, milling, drilling, &c., and is especially adapted for small shops, locksmiths, blacksmiths, grinders, toolmakers, watch-makers, &c.

In the accompanying drawings, Figure 1 is a vertical longitudinal sectional view of my improved metal-working machine. Fig. 2 is a top-view of the head-stock and slide-rest. Fig. 3 is a vertical transverse sectional view of the slide-rest, on the line 3 3, of Fig.1.

Similar letters of reference indicate corresponding parts.

The combined bed and guide-rail A on which the tail-stock and slide-rest can slide is prismatic in cross-section and is provided with an L-shaped extension A havinga suitable projection or boss I) on the under side, by means of which said combined bed and guide-rail A can be held between the jaws of a vise or fastened to a bench as may be desired. On the said extension A the headstock frame B is fastened and held by means of a pivot Z and two screws Z, thus permitting of giving the head-stock frame B any desired inclination and looking it in place after adjustment, as, for example, is shown in Fig. 2 in dotted lines. The rail A is provided in its under side with a longitudinal recess which contains the screw-spindle O that is provided at one end with a square head cfor applying a key or other implement for turning it, the opposite end of said spindle terminating in the smooth part that turns in a suitable bearing. The tail-stock K is adapted to slide on the bed-rail and can be locked in place by means of the clamping-screw la in the usual manner. The slide-rest is constructed with a block D containing the nut d through which the screw-spindle 0 passes, said block D being provided with sunken cogs in its rim, which cogs are shown only on half the diameter in the section Fig. 3, and said cogs engage a transverse screw-spindle R, which spindle is mounted in the top of the sleeveEsurrounding the block D, and the spindle is provided at one end with a squared head for applying a key for turning it. The sleeve E has two lugs e, into which a clamping screw f is screwed, by means of which said sleeve can be clamped securely on the block D. The sleeve E is also provided with an extension F having a vertical split sleeve having two wings e into which the clamping screw f is screwed that serves for clamping said split sleeve F on the pivot g, which forms part of and projects downward from the top rail or bar G of the slide-rest. On said rail G the tool-holding clamp G is mounted to slide, and can be shifted lengthwise by means of a screw-spindle J arranged in a longitudinal recess in the under side of said supporting rail G, which spindle J engages the nut h connected with the tool-holding clamp G. By turning the screw-spindle B, after having loosened the screw f, the slide-rest can be turned around the spindle O to have any desired inclination, and when the screw f in the sleeve F is loosened the slide-rest G can be turned horizontally on its pivot g. The tool-clamp or holder G may have any desired shape, according to the shape of the tool that is to be held or the shape of the article to be acted upon, &c.

On account of the great adj ustability of the slide-rest, the machine can be used for various purposes, such as turning metal, milling or drilling. In drilling, the article to be drilled is held in the slide-rest and the bit or drill is screwed en the end of the driving or fly-wheel shaft L. In a like manner the machine can be used for milling, the milling tools being applied on the shaft L and the piece to be milled held on the slide-rest, which can readily be adjusted in a proper position for the milling operation.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In a metal-Working machine, the combination with abed-rail, of a spindle in the same, a nut 0n the spindle, a block surrounding the nut and having teeth in its rim, a sleeve surrounding the block and adapted to be clamped on the same, a rail supported on said block 

